I have always wanted to have a Longhorn Cowfish in my 42g hex tank, and finally I've had one manage to live for a few weeks. So, at this point I've realized that they're really playful and intelligent. Mine is always looking at me and swimming around and looking excited. I've heard they can be trained to do "tricks" or something, but I don't know what they're supposed to be able to do.

Anyone have any ideas on what I could do to get a little interaction out of him? He'll nibble my fingers and stuff if I put them in the tank, and he seems to be fairly comfortable with me putting my whole arm in the tank (which I have to do to move things around all the time). I just don't have any bright ideas yet.